WAEC - Mathematics (2002 - No. 42)
Calculate and correct to two significant figures, the percentage error in approximating 0.375 to 0.4
2.0
2.5
6.6
6.7
Explication
Measured value = 0.375
Approximation = 0.4
Error = 0.4 - 0.375 = 0.025
Error% = \(\frac{0.025}{0.375}\) x 100% = 6.67% = 6.7%
Approximation = 0.4
Error = 0.4 - 0.375 = 0.025
Error% = \(\frac{0.025}{0.375}\) x 100% = 6.67% = 6.7%